FR2613894B1 - Transducteur electroacoustique - Google Patents

Transducteur electroacoustique

Info

Publication number
FR2613894B1
FR2613894B1 FR8705223A FR8705223A FR2613894B1 FR 2613894 B1 FR2613894 B1 FR 2613894B1 FR 8705223 A FR8705223 A FR 8705223A FR 8705223 A FR8705223 A FR 8705223A FR 2613894 B1 FR2613894 B1 FR 2613894B1
Authority
FR
France
Prior art keywords
electroacoustic transducer
electroacoustic
transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR8705223A
Other languages
English (en)
Other versions
FR2613894A1 (fr
Inventor
Alain Deraedt
Pascal Freulon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CASO
Original Assignee
CASO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CASO filed Critical CASO
Priority to FR8705223A priority Critical patent/FR2613894B1/fr
Publication of FR2613894A1 publication Critical patent/FR2613894A1/fr
Application granted granted Critical
Publication of FR2613894B1 publication Critical patent/FR2613894B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/004—Transducers other than those covered by groups H04R9/00 - H04R21/00 using ionised gas
FR8705223A 1987-04-13 1987-04-13 Transducteur electroacoustique Expired - Fee Related FR2613894B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8705223A FR2613894B1 (fr) 1987-04-13 1987-04-13 Transducteur electroacoustique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8705223A FR2613894B1 (fr) 1987-04-13 1987-04-13 Transducteur electroacoustique

Publications (2)

Publication Number Publication Date
FR2613894A1 FR2613894A1 (fr) 1988-10-14
FR2613894B1 true FR2613894B1 (fr) 1990-12-14

Family

ID=9350059

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8705223A Expired - Fee Related FR2613894B1 (fr) 1987-04-13 1987-04-13 Transducteur electroacoustique

Country Status (1)

Country Link
FR (1) FR2613894B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10021492B1 (en) * 2017-10-06 2018-07-10 Aga Ad Media, Llp Electroacoustic transducer with axial electric field

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR594174A (fr) * 1925-02-13 1925-09-08 Materiel Telephonique Procédé et arrangement pour enregistrer et reproduire les ondes sonores
US2793324A (en) * 1956-08-28 1957-05-21 Michael N Halus Ionic triode speaker
US3476887A (en) * 1966-04-26 1969-11-04 Arnold L Seligson Ionic electro-acoustic transducer
DE2115544A1 (de) * 1971-03-31 1972-10-05 Wilhelms W Koronaphon
FR2544951A1 (fr) * 1983-04-22 1984-10-26 Klein Siegfried Haut-parleur a effet corona, avec moyens permettant d'obtenir une forte diminution d'ozone, a l'exterieur de celui-ci

Also Published As

Publication number Publication date
FR2613894A1 (fr) 1988-10-14

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
TP Transmission of property
ST Notification of lapse